package com.fdd.spring.proxyexercise;

public class Sum implements Cal {


    public Sum(double i, double j) {
        System.out.println("Sum的构造器");
    }
    @Override
    public double getSub(double i, double j) {
        return i - j;
    }

    @Override
    public double getSum(double i, double j) {
        return i + j;
    }
}
